#include<functional> 
#include<iostream>
#include<string>

void print(const char* str ,int  num )
{
  std::cout << str << num << std::endl ;
}


int main()
{
  //print("nihao" , 10 );
  auto func = std::bind(print,"nihao",std::placeholders::_1) ;
  func(100);

  return 0;
}
